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News
Analog Devices Launches Industry’s First Quad-Channel Protector and Multiplexers with Programmable Fault Detection
2015-07-09 | Return- Analog Devices, Inc. (NASDAQ: ADI) today introduced a quad-channel protector and two multiplexers offering +/-55-V overvoltage protection (OVP) for precision converters, amplifiers and other components that operate from a low voltage of 4.5 V up to 36 V. TheADG5462F quad channel protector,ADG5248F 8:1 multiplexer and ADG5249Fdifferential 4:1 multiplexer offer +/-55-V OVP in power-on and power-off stages and provide robust, precision protection against hot-swapping and operator miss-use events, thereby protecting downstream analog components. By providing on-chip fault diagnostics, the new devices are the first in the industry to detect and avoid defective channels, which simplifies fault detection algorithms and improves system uptime. The new products maximize design flexibility by enabling users to define fault-trigger levels independent of primary supplies. By also removing the need for multiple discrete protection components, the ADG5462F, ADG5248F and ADG5249F optimize PCB area and simplify the design process. The devices are optimized for precision instrumentation, process control and avionics applications.
- View ADG5462F product page, pricing and availability; download data sheet; order samples and evaluation boards: http://www.analog.com/adg5462f
- View ADG5248F and ADG5249F product page, pricing and availability; download data sheet; order samples and evaluation boards:http://www.analog.com/adg5248f
- Learn about ADI’s fault protected, switches and muxes product portfolio:http://www.analog.com/en/products/switches-multiplexers.html/fault-protected-switches-multiplexers
- Connect with engineers and ADI product experts on EngineerZone®, an online technical support community:https://ez.analog.com/community/switches_multiplexers
The ADG5248F 8:1 multiplexer and ADG5249F differential 4:1 multiplexer maximize throughput for small signal measurement such as thermocouples or resistance temperature detectors (RTDs) by offering best-in-class, low-fault leakage of 70 nA, which is 10 times lower than competing solutions, and on-leakage of 20 nA. These levels ensure that the user can take accurate measurements when other multiplexer I/O channels are in an over-voltage fault condition.
Key Features:
Over-voltage detection on source pins
- Minimum secondary supply level: 4.5-V single-supply
- Over-voltage protection up to +/−55 V
- 4-kV HBM (human body model) ESD (ADG5462F)
- +/-5-V to +/-22-V dual-supply operation
- 8-V to 44-V single-supply operation
- Fully specified at +/-15 V, +/-20 V, +12 V, and +36 V
ADG5462F: Ultra-low on-resistance of 10 ohm and on-resistance flatness of 0.5 ohm minimizes system total harmonic distortion and enhances noise performance.
ADG5248F/49F: Ultra-low charge injection of 0.8 pC and on-capacitance of 19 pF enables higher accuracy, faster channel switching in multiplexed systems.
Family Optimized for Low RON
Product
Configuration
Fault
Trigger
ThresholdFault
Mode
IndicatorFault
FlagPackaging
ADG5462F
Quad Channel Protector
Secondary Supplies
Selectable Secondary Supplies or Open Circuit
Indicator of Fault
16-lead TSSOP/
LFCSPADG5412F/
ADG5413FQuad SPST
Primary Supplies
Open Circuit
Indicator of Fault
16-lead TSSOP/
LFCSPADG5412BF/
ADG5413BFQuad SPST & Bidirectional OVP
Primary Supplies
Open Circuit
Indicator of Fault
16-lead TSSOP/
LFCSPADG5404F
4:1 Multiplexer Primary Supplies
Primary Supplies
Selectable Rails or Open Circuit
Indicator of Fault & Source of Fault
14-lead TSSOP
16-lead
LFCSPADG5436F
Dual SPDT
Primary Supplies
Selectable Rails or Open Circuit
Indicator of Fault & Source of Fault
16-lead TSSOP/
LFCSP
Family Optimized for Low Charge Injection
ProductConfiguration
Fault
Trigger
ThresholdFault
Mode
IndicatorFault
FlagPackaging (Released)
ADG5248F
8:1 Multiplexer
Secondary Supplies
Secondary Supplies
Indicator of Fault & Source of Fault
20-lead TSSOP
ADG5249F
Differential 4:1 Multiplexer
Secondary Supplies
Secondary Supplies
Indicator of Fault & Source of Fault
20-lead TSSOP
ADG5208F
8:1 Multiplexer
Primary Supplies
Rails
None
16-lead TSSOP
ADG5209F
Differential 4:1 Multiplexer
Primary Supplies
Rails
None
16-lead TSSOP
ADG5243F
(sampling)Triple SPDT
Secondary Supplies
Secondary Supplies
Indicator of Fault & Source of Fault
20-lead TSSOP
Source:http://www.analog.com/